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Earnings (Loss) per Share
 6 Months Ended
Jun. 30, 2018
Earnings Per Share [Abstract]  
Earnings (Loss) per Share Earnings (Loss) per Share
We calculate basic earnings (loss) per share by dividing net income (loss) by the weighted average number of common shares outstanding. We calculate diluted earnings per share by dividing net income by the weighted average number of common shares outstanding plus the dilutive effect of outstanding share-based awards, including restricted stock units, performance shares, and performance units. Due to the net loss for the three- and six-month periods ended June 30, 2018, $0.1 million of incremental shares from share-based compensation arrangements were excluded from the computation of diluted weighted average shares outstanding, in both periods, because their effect would be anti-dilutive.
The reconciliation of basic earnings (loss) and diluted earnings (loss) per common share for the three- and six-month periods of fiscal 2018 and 2017 were as follows:
 
Three Months Ended
 
Six Months Ended
(in thousands, except per share data)
June 30, 2018
 
July 1, 2017
 
June 30, 2018
 
July 1, 2017
Net income (loss)
$
(8,558
)
 
$
3,238

 
$
(21,985
)
 
$
3,822

 
 
 
 
 
 
 
 
Basic weighted shares outstanding
9,215

 
9,055

 
9,176

 
9,011

Dilutive effect of share-based awards
—

 
135

 
—

 
130

Diluted weighted average shares outstanding
9,215

 
9,190

 
9,176

 
9,141

 
 
 
 
 
 
 
 
Basic earnings (loss) per share
$
(0.93
)
 
$
0.36

 
$
(2.40
)
 
$
0.42

Diluted earnings (loss) per share
$
(0.93
)
 
$
0.35

 
$
(2.40
)
 
$
0.42